Oil made gains on Tuesday after Saudi Arabia boosted the price of its oil to Asian and U.S. buyers and fighting threatened oilfields in Libya, but some analysts say crude could fall to $20 a barrel because of continued oversupply.

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OTTAWA�Canada's gross domestic product rose at a faster-than-expected clip in the fourth quarter, suggesting the economy held up relatively well even as prices for oil�one of Canada's main exports�were sliding.

TORONTO, March 3 (Reuters) - Canada's main stock exchange retreated on Tuesday in a broad decline led by the Bank of Nova Scotia, which reported a lower-than-expected quarterly profit, and a sell-off in shares of Valeant Pharmaceuticals International Inc ...